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JPL Small-Body Database Browser
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(2021 JS3)
Classification: Apollo [NEO]          SPK-ID: 54144297
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 3 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .5076918562144916 0.00080652  
a 2.048915147167852 0.0033591 au
q 1.008697612876217 2.5374e-06 au
i 7.926731735227714 0.0089094 deg
node 222.346383591376 0.0004038 deg
peri 30.23021031766759 0.0030317 deg
M 10.96173245985862 0.025841 deg
tp 2459363.881717937950
(2021-May-29.38171794)
0.0034274 TDB
period 1071.234094185281
2.93
2.6344
0.007213
d
yr
n .3360609991355765 0.00082644 deg/d
Q 3.089132681459487 0.0050645 au
  Orbit Determination Parameters
   # obs. used (total)      40  
   data-arc span      4 days  
   first obs. used      2021-05-08  
   last obs. used      2021-05-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      7  
   norm. resid. RMS      .34466  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-12 05:53:01  

Additional Information
 Earth MOID = .0314034 au 
 Jupiter MOID = 1.98002 au 
 T_jup = 3.610 
[ hide covariance matrix ]
Orbital Elements at Epoch 2459343.5 (2021-May-09.0) TDB
Reference: JPL 3 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .508323824265246 0.00080504  
q 1.008767155154958 2.4451e-06 au
tp 2459363.848861545292
(2021-May-29.34886155)
0.003299 TDB
node 222.3765040920543 0.00051074 deg
peri 30.162508067634 0.0032732 deg
i 7.94012957551592 0.0088685 deg
  Orbit Determination Parameters
   # obs. used (total)      40  
   data-arc span      4 days  
   first obs. used      2021-05-08  
   last obs. used      2021-05-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      7  
   norm. resid. RMS      .34466  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-12 05:53:01  

Additional Information
 Jupiter MOID = 1.98002 au 
 T_jup = 3.610 
Orbit Covariance (6×6)
  e q tp node peri i
e 6.480843963681405E-7 8.47235667120936E-10 -2.569508883131277E-6 -3.824919221945534E-7 2.452948452201208E-6 7.138223949227319E-6
q 8.47235667120936E-10 5.978273718759598E-12 -5.195206108321197E-9 -1.134049096486937E-10 5.791323634684619E-10 9.653829707487204E-9
tp -2.569508883131277E-6 -5.195206108321197E-9 1.088310640726449E-5 1.369447495724102E-6 -8.729560893933313E-6 -2.842198035372009E-5
node -3.824919221945534E-7 -1.134049096486937E-10 1.369447495724102E-6 2.608550211444672E-7 -1.662192121621568E-6 -4.182909774553004E-6
peri 2.452948452201208E-6 5.791323634684619E-10 -8.729560893933313E-6 -1.662192121621568E-6 1.071381786536603E-5 2.684051819348471E-5
i 7.138223949227319E-6 9.653829707487204E-9 -2.842198035372009E-5 -4.182909774553004E-6 2.684051819348471E-5 7.865028493443091E-5

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 25.80   .2734 MPO622848 autocmod 2.9c

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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